/*
 * Copyright (C) 2018 Apple Inc.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#include "config.h"
#include "SVGAnimatedPathSegListPropertyTearOff.h"

#include "SVGPathElement.h"

namespace WebCore {

SVGAnimatedPathSegListPropertyTearOff::SVGAnimatedPathSegListPropertyTearOff(SVGElement* contextElement, const QualifiedName& attributeName, AnimatedPropertyType animatedPropertyType, SVGPathSegListValues& values)
    : Base(contextElement, attributeName, animatedPropertyType, values)
{
    ASSERT(contextElement);
    ASSERT(is<SVGPathElement>(contextElement));
}

SVGAnimatedPathSegListPropertyTearOff::~SVGAnimatedPathSegListPropertyTearOff()
{
    downcast<SVGPathElement>(contextElement())->animatedPropertyWillBeDeleted();
}

void SVGAnimatedPathSegListPropertyTearOff::animValDidChange()
{
    ASSERT(m_animatedPathByteStream);
    auto pathElement = makeRefPtr(downcast<SVGPathElement>(contextElement()));

    // If the animVal is observed from JS, we have to update it on each animation step.
    // This is an expensive operation and only done if someone actually observes the animatedPathSegList() while an animation is running.
    if (pathElement->isAnimValObserved()) {
        auto& animatedList = currentAnimatedValue();
        animatedList.clear();
        buildSVGPathSegListValuesFromByteStream(*m_animatedPathByteStream, *pathElement, animatedList, UnalteredParsing);
    }

    Base::animValDidChange();
}

}
